arduino powered jukebox

hey guys how can i add more song ability to the project by jose andy herera about a arduino uno powered jukebox and a spark fun mp3 shield with a vs1053 decorder chip, the project is perfect for what i wnt to use it for but the only glittch id its playing a total of nine songs

Try this one instead; the info says the MP3 player can only read short filenames, so the author uses text files to link real artist and title names to track files.
Using that system, it appears to have unlimited file capability.

(Use Chrome and the translate option, or Google translate)